Agreed. If a policy requires nearly perfect implementation, and follow through, and good behavior of the people, in order to succeed, and you rarely achieve /

Agreed. If a policy requires nearly perfect implementation, and follow through, and good behavior of the people, in order to succeed, and you rarely achieve / sustain the follow through by the community or police, etc. then it is not a good policy. Even though the concept was nice. A policy is everything, start to finish. You can't just say a policy was good except for the implementation. No matter how good it makes you feel that you got the idea right, it just wasn't carried out the way you thought.